10 1/1 OCTAVE ANALYSER 10.1 Selection of 1/1
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1. are ignored oa a a SPECTRUM VIEH SPECTRUM VIEW SPECTRUM VIEH NORMAL HORMAL HORMAL AVERAGED AVERAGED AVERAGED Bl Dd Hae Dal o SPECTRUM VIEW SPECTRUM VIEH NORMAL VIEW oo HORMAL INSTANTANEOUS TYPE INSTANTANEOUS HAM y MIH El Displays with MAX and or MIN spectrum switched on and off 10 11 SVAN 953 USER MANUAL Displays with MAX a MIN b or both MAX and MIN c spectra presented together with averaged one 10 3 12 Presentation of logged 1 1 OCTAVE spectra LOGGER VIEW The spectra registered in the logger s file can be presented on the display in the LOGGER VIEW window path MENU DISPLAY LOGGER VIEW These spectra are saved with the same step as selected in the SLM profiles see the description of the LOGGER STEP path MENU INPUT MEASUREMENT SETUP LOGGER STEP In order to display the registered in the logger s file spectra the user has to select required logger file in LOGGER VIEW window and press lt ENTERs select the spectrum presentation mode by pressing lt V gt push button and then e press the lt SHIFT gt and lt gt gt push buttons for the spectra registred later e press the lt SHIFT gt and lt lt gt push buttons for the spectra registred earlier Displays with 1 1 OCTAVE spectra saved in the logger with 500 ms step 10 122. display with the results of 1 1 OCTAVE analysis actually performed The FULL view looks nearly the same as the NORMAL one but the type of the analysis result showed on the display and the clock are taken off The EXTENDED view looks the same as NORMAL one with the exception of the graduation scale on the left side which is not displayed 10 3 11 Selection of the spectrum type for presentation TYPE The user can select the different 1 1 OCTAVE spectra to be visible on the display in the TYPE window path MENU DISPLAY DISPLAY SETUP SPECTRUM VIEW by pressing the lt lt gt lt gt gt push buttons The following spectra are selectable AVERAGED INSTANTANEOUS MAX or MIN a o o a SPECTRUM VIEW SPECTRUM UIEH SPECTRUM UIEH SPECTRUM VIEH WIEW EMAL HORMAL VIEW NORMAL WIEW HORMAL MFE z ih REGS TFE TYPE Presentation of different 1 1 OCTAVE spectra In the case when the AVERAGED or INSTANTANEOUS spectrum is selected the user can additionally switch on V or off the presentation of MAX and or MIN spectrum by placing or replacing the special character in the displayed inversely line with the MAX or MIN text by means of the lt lt gt lt gt gt push buttons In order to confirm the selection the user has to press the lt ENTER gt push button This confirmation closes the SPECTRUM VIEW sub list The sub list can be also closed after pressing the lt ESC gt push button but the settings made there
3. 1 OCTAVE spectra in the LOGGER path MENU INPUT SPECTRUM LOGGER The output of the selected 1 1 octave filter can be also used as the triggering signal in LOGGER TRIGGER window path MENU INPUT TRIGGER SETUP LOGGER TRIGGER SOURCE 10 2 1 Measurement range selection in 1 1 OCTAVE analysis MEASUREMENT RANGE The selection of the input range is possible after entering the MEASUREMENT RANGE window In order to open this window the user has to select the MEASUREMENT RANGE text in the INPUT list by means of the lt lt gt lt gt gt push buttons and press the lt ENTER gt one In 1 1 OCTAVE analyser differently than in SLM mode the user can select by means of the lt lt gt lt gt gt and lt ENTER gt push buttons the input ranges specified in Appendix C named as LOW and HIGH The return to the INPUT list is made after pressing the lt ESC gt push button ignoring the changes or lt ENTER gt push button confirming the selection o dal MEASUR RANGE MEASUR RANGE RANGE ET RANGE AHIGH RMS A RMS A 25 3946 119 306 29 396 136 306 33 306 119 306 To 30B 142 306 MEASUREMENT RANGE window in 1 1 OCTAVE analyser A Notice It is not possible to change the measurement range during the execution of the measurements It is possible to open different lists and sub lists but the positions in these lists are not displayed inversely and so not accessible The Loudspeaker icon indicate
4. AY MODES SPECTRUM 1 1 OCTAVE spectrum for all ten centre frequencies of 1 1 octave pass band filters together with the TOTAL RMS values measured with A C and Z weighting filters are presented in the switched on SPECTRUM mode The read out of the interested value of 1 1 OCTAVE spectrum can be done by means of the cursor controlled by the lt lt gt lt gt gt push buttons Below the spectrum lines the numerical value in dB Level and the selected 1 1 octave filter its centre frequency or the selected TOTAL indicated by the letter A C or Z are displayed 10 1 Selection of 1 1 OCTAVE analysis mode In order to select the 1 1 OCTAVE analysis mode the user has to enter the FUNCTION list by pressing the lt MENU gt push button then select by means of the lt A gt lt y gt or lt lt gt lt gt gt push buttons the FUNCTION text and finally press the lt ENTER gt one Then the user has to open the MEASUREMENT FUNCTION sub list to select the MEASUREMENT FUNCTION text using the lt A gt lt y gt or lt lt gt lt gt gt push buttons and press the lt ENTER gt one when this text is displayed inversely o oa ao MENU FUNCTION MEASUR FUNCTION FUMCT TOW THPUT DISPLAY FILE REPORT MEASUREMENT FUNCTION LEVEL METER CALIBRATION 1 71 OCTAVE C DOSE METER b c Main list with FUNCTION text selected a FUNCTION list opened with MEASUREMENT FUNCTION text selected b 1 1 OCTAVE mode activated i
5. NU INPUT SPECTRUM FILTER and the real time clock e g 13 21 or the actual time of the recent measurement cycle in the case when the measurements are performed are presented on the right side of the display The centre frequency of the band for which the analysis was made the value at the cursor position and the units are presented on the bottom of the display On the left side of the display the user can see the graduation scale of the vertical axis The effect of two consecutive pressings of the lt ENTER gt push button in the case of 1 1 OCTAVE spectrum is given below 10 6 SVAN 953 USER MANUAL Li Li s 1 48 khz lt ENTER gt T Displays with 1 1 OCTAVE spectrum after entering the presentation of the statistical analysis results performed for the selected 1 1 OCTAVE filter and after entering 1 1 OCTAVE spectrum of the LN L398 43 65 dE The centre frequency of the band can be changed by pressing the lt lt gt lt gt gt push buttons After two consecutive pressings of the lt ESC gt push button in the case when the LN spectra are presented the instrument returns to the presentation of 1 1 OCTAVE spectrum La 48 1 de Displays with 1 1 OCTAVE spectrum of LN after return to the presentation of the statistical analysis results performed for the selected 1 1 OCTAVE filter and after return to the presentation of 1 1 OCTAVE spectrum The statistical analysis and LN spectra calculation is also made fo
6. SVAN 953 USER MANUAL 10 1 1 OCTAVE ANALYSER The instrument operates as 1 1 OCTAVE analyser in a very similar way to the SLM mode and in addition 1 1 OCTAVE analysis is performed in parallel with the SLM operations All ten 1 1 octave digital pass band filters with the centre frequencies from 16 kHz down to 31 5 Hz in base two system are working in the real time with the weighting filters Z A or C selected in the SPECTRUM path MENU INPUT SPECTRUM FILTER and the linear RMS detector Additionally the TOTAL RMS values for the full frequency range with the A C and Z weighting filters are calculated and displayed A Notice The TOTAL RMS results are measured with the weighting filters A C and Z without taking into account the settings of the SLM profiles The spectra are always linearly averaged Thus the TOTAL values from 1 1 OCTAVE analysis can be different from those obtained for the SLM profiles if the RMS INTEGRATION was set as EXPONENTIAL The SVAN 953 instrument which in SLM mode operates in one wide measurement range as 1 1 OCTAVE analyser it operates in two ranges called LOW and HIGH which can be selected in the MEASUREMENT RANGE window path MENU INPUT MEASUREMENT RANGE The results of 1 1 OCTAVE analysis so called spectrum can be examined by the user on a display in so called SPECTRUM presentation mode The availability of this mode can be switched on or off by the user path MENU DISPLAY DISPL
7. are used for this purpose in order to change the active profile the lt SHIFT gt and lt A gt or lt SHIFT gt and lt v gt push buttons should be pressed lt SHIFT gt lt v gt lt SHIFT gt lt v gt Displays in 1 1 OCTAVE analysis with presentation of the statistical analysis in all profiles The statistical analysis is also performed in 1 1 OCTAVE analysis The results of this analysis performed for one of 1 1 OCTAVE bands selected by the cursor are visible on the display after pressing the lt ENTER gt push button in the case when 1 1 OCTAVE spectrum was presented in the instrument The centre frequency of the filter for which the analysis was made is showed on the right side of the display The LN number corresponding to the cursor position the LN value and the units are presented on the bottom of the display The LN value can be changed by pressing the lt lt gt lt gt gt push buttons 1 1 OCTAVE spectrum and the statistical analysis performed for selected 1 1 OCTAVE band here 1 kHz It is also possible to examine 1 1 OCTAVE spectrum calculated for the selected by the cursor LN statistical level after pressing once more the lt ENTER gt push button The LN value e g L90 for which the presented spectrum is given the information about the TYPE of the spectrum Aver AVERAGED Inst INSTANTANEOUS MAX MIN path MENU DISPLAY DISPLAY SETUP SPECTRUM VIEW TYPE the weighting filter A C or Z path ME
8. er each pressing of the lt SHIFT gt and lt A gt or lt v gt push buttons The change of the result from the same profile is done by pressing the lt lt gt lt gt gt push buttons SEL Lin SPL Fast C SPL Fast Z 78 3 ap 10 9 apy 13 4 a Profiled 3 Profilecz3 3 Profilen S Displays in 1 1 OCTAVE analysis in one profile mode It is also possible to change the size of the characters in one profile display mode by pressing lt ALT gt and lt A gt or lt v gt push buttons SPL Fast 2 86 6 aB Profilecsa File MAY29 Displays with the change of the size of characters in one profile mode 10 3 2 Presentation of 1 1 OCTAVE analysis results SPECTRUM The basic view of the display presenting 1 1 OCTAVE spectrum was already discussed Additionally in this view it is possible to shift the horizontal axis in relation to the vertical one using the lt SHIFT gt and lt A gt lt v gt push buttons After each pressing of these buttons the presented picture is moved 10 dB down or up respectively Displays in 1 1 OCTAVE analysis with the shifted horizontal axis in relation to vertical one 10 3 3 Three profiles presentation mode in 1 1 OCTAVE analysis 3 PROFILES There is a slight difference in 3 PROFILES mode between the SLM and 1 1 OCTAVE analyser Namely in order to inform the user about the current function of the instrument the doted lines are used in 3 PROFILES for the indication that the instrument does not wo
9. h button which closes the sub list The sub list can be also closed after pressing the lt ESC gt push button but the settings made there are ignored o a a oa DISPLAY SETUP SPECTRUM VIEW SPECTRUM VIEW SPECTRUM VIEW DISPLAY SCALE SPECTRUM IEW EXTENDED IEW i TE HORMAL OGGER VIEW PAVERRGED TERE i PE BRGEE TYPE PE Baer zE 0 1 1 OCTAVE analysis results presented with different value of VIEW selected in SPECTRUM VIEW A Notice The same result change of the current view mode can be achieved by pressing the lt ALT gt and lt A gt lt Y gt push buttons while 1 1 octave spectrum is presented on the display In so called NORMAL view on the right side of the display the user can see the text corresponding to the value presented on the bottom of the display for the band selected with the cursor 1 1 RMS 1 1 LEQ 1 1 Max or 1 1 Min the information about the type of the analysis result showed on display Aver AVERAGED Inst INSTANTANEOUS Max Min path MENU DISPLAY DISPLAY SETUP SPECTRUM VIEW TYPE the weighting filter A C or Z path MENU INPUT SPECTRUM FILTER and the real time clock e g 10 33 or the actual time of the recent measurement cycle in the case when 10 10 SVAN 953 USER MANUAL the measurements are performed e g 00 13 00 11 00 09 cf displays below On the left side of the display the graduation scale of the vertical axis is given NORMAL view of the
10. ht corner of the display e lt SHIFT gt and lt A gt push buttons the shift of the horizontal axis in relation to the vertical one after each pressing the presented picture is moved 10 dB up e lt SHIFT gt and lt y gt push buttons the shift of the horizontal axis in relation to the vertical one after each pressing the presented picture is moved 10 dB down Displays in 1 1 OCTAVE analysis in LOGGER mode registered results from all profiles 10 3 6 Basic data of the saved files FILE INFO In the FILE INFO window the following information is presented e the file name e the file size e date of the registration of the main results cf App B e time of the registration e time so called ELAPSED TIME during which the main results saved in the logger were measured The value presented in the ELAPSED TIME belongs to the interval 1 INTEGRATION PERIOD and depends on the moment and the way the measurements were stopped During the measurement when the AUTO SAVE option is active at the display the user can see the name of the file being written oOo f m FILE INFO FILE INFO FILE NAME OCT FILE INFO OCT FILE SIZE 4886 E 41 JUL 2067 id4 44d 54 ELAPSED TIME 80 08 18 FILE INFO window with the name of the file being written and with information about already saved file 10 3 7 Scaling the vertical axis of graphical presentation DYNAMIC The DYNAMIC path MENU DISPLAY DISPLAY SCALE DYNAMIC enab
11. les the user to select the proper scaling of the graphical mode presentation In the case of the vertical axis one can obtain the double four times and eight times expansion as the default the vertical axis corresponds to 80 dB 10 8 SVAN 953 USER MANUAL after expansion it corresponds to 40 dB 20 dB and 10 dB respectively using the lt lt gt lt gt gt push buttons and pressing the lt ENTER gt for the confirmation o pm o o DISPLAY SCALE DISPLAY SCALE DISPLAY SCALE DISPLAY SCALE E EEE ECES ix ix TW CW lt v gt lt y gt lt y gt lt vV gt 1 1 OCTAVE analysis results presented with different value of DYNAMIC selected in DISPLAY SCALE 10 3 8 Scaling the horizontal axis of graphical presentation X ZOOM The X ZOOM path MENU DISPLAY DISPLAY SCALE X ZOOM enables the user to change the horizontal axis of the results of 1 1 OCTAVE analysis by means of the lt lt gt lt gt gt push buttons The following values are available in this mode 3x 4x 5x and 6x In order to confirm the selection the user has to press the lt ENTER gt push button which closes the sub list The sub list can be also closed after pressing the lt ESC gt push button but the settings made there are ignored a ao oa oa DISPLAY SCALE DISPLAY SCALE DISPLAY SCALE DISPLAY SCALE 1 8d 1 8d z 20E ES OM Dv lt v gt lt v gt lt vV gt lt vV gt 1 1 OCTAVE analysis results presented wi
12. mode However in 1 1 OCTAVE analysis it is possible to access mentioned above position and to make a selection The results coming from the output of 1 1 OCTAVE filters starting from 125 Hz 125 Hz 250 Hz 500 Hz 1 00 kHz 2 00 kHz 4 00 kHz 8 00 kHz and 16 0 kHz are available as well as RMS result from the first profile Other LOGGER SETUP settings are identical as for the SLM a o ao TRIGGER SETUP LOGGER TRIGGER LOGGER TRIGGER LOGGER TRIGGER LEVEL TRIGGER LEWEL MEASURE TRIGGER RMSCL gt MEFE SOURCE LOGGER TRIGGER d s RECORDER TRIGGER LOGGER TRIGGER windows the selection of the signal used for triggering 10 3 Display options in 1 1 OCTAVE analysis mode The DISPLAY list is used for setting the various parameters which are mainly dedicated for the control of the display The following sub lists contain the elements that influence the presentation of the results of 1 1 OCTAVE analysis DISPLAY MODES _ enables one to select the mode of the presentation of 1 1 OCTAVE analysis DISPLAY SETUP enables one to change the scale of the vertical and horizontal axis of the graphical presentation switch on and off the grid select one of the available views of the display and choose the type of the spectrum to be presented LOGGER VIEW enables one to select and present the results of the analysis stored in the files of the logger The DISPLAY MODES path MENU DISPLAY DISPLAY MODES enables the user to switch on o
13. n MEASUREMENT FUNCTION window c 10 1 SVAN 953 USER MANUAL 1 1 OCTAVE mode is selected by placing the special character in the line with 1 1 OCTAVE text The position of the character can be changed using the lt A gt lt v gt or lt lt gt lt gt gt push buttons After placing the character in the line with 1 1 OCTAVE text the user has to press the lt ENTER gt push button which closes the MEASUREMENT FUNCTION sub list and confirms the selection After pressing the lt ESC gt push button the sub list is also closed but any changes are ignored A Notice It is not possible to change the current function during the measurements The instrument displays in this case for about 2 seconds the text gt MEASUREMENT IN PROGRESS In order to change the current measurement function the instrument must be stopped MEASUREMENT IH PROGRESS Display with the text informing the user about the currently performed measurements 10 2 Selection of parameters of 1 1 OCTAVE analysis The execution of 1 1 OCTAVE analysis depends on the certain number of the parameters which can be set in the different sub lists of the INPUT list Namely the user can set there the range of the measurements path MENU INPUT MEASUREMENT RANGE and FILTER path MENU INPUT SPECTRUM FILTER Additionally the user can be informed about the BAND of the analysis path MENU INPUT SPECTRUM BAND and switch on or off the registration of 1
14. n is ignored 10 2 3 The 1 1 OCTAVE analysis band BAND In SVAN 953 instrument the 1 1 OCTAVE analysis is performed in so called AUDIO band which consists of ten octaves starting from 31 5 Hz and ending at 16 kHz The BAND position is not accessible 10 2 4 Activation of saving results of the 1 1 OCTAVE analysis in the logger s file LOGGER The RMS results from 1 1 OCTAVE analysis can be saved in the logger s file of the instrument The enabling of 1 1 OCTAVE spectrum in the LOGGER file is made by placing V or replacing the special character in the displayed inversely line with the LOGGER text by means of the lt lt gt lt gt gt push buttons In order to confirm the selection the user has to press the lt ENTER gt push button This confirmation closes the SPECTRUM sub list The sub list can be also closed after pressing the lt ESC gt push button but the settings made there are ignored oa oa SPECTRUM SPECTRUM FILTER 2 BAND z AUDIO LOGGER Spectrum windows with disabled and enabled savings of 1 1 OCTAVE spectrum 10 3 SVAN 953 USER MANUAL 10 2 5 Selection of the result which triggers registration in logger in 1 1 OCTAVE analysis LOGGER TRIGGER In SLM mode only the result coming from the RMS detector of the first profile RMS 1 is used for triggering the measurement results registration in the logger of the instrument The SOURCE position in the LOGGER TRIGGER window is not accessible in that
15. r all TOTAL values of 1 1 OCTAVE analysis lt ENTER gt lt gt gt lt ENTER gt lt gt gt lt ENTER gt L 35 8 de Fr TOTAL C L396 35 8 de Displays after pressing lt ESC gt push button in 1 1 OCTAVE spectrum of LN while TOTAL C value was selected and after another pressing of lt ESC gt push button return to presentation of 1 1 OCTAVE spectrum 10 7 SVAN 953 USER MANUAL 10 3 5 Time history plot LOGGER In the LOGGER mode the user can see the time history plot with the results which are saved in the logger file in the case when the LOGGER x positions is switched on V in the PROFILE x sub lists with the step set for all profiles in the LOGGERSTEP position path MENU INPUT MEASUREMENT RANGE LOGGER STEP In this mode the user after pressing the different push buttons can achieve the following results e lt A gt or lt v gt push buttons the change of the active profile e lt ALT gt and lt A gt or lt ALT gt and lt v gt push buttons the change of the view type e lt ALT gt and lt lt gt or lt ALT gt and lt gt gt push buttons the change of the result saved in a profile PEAK MAX MIN RMS e lt lt gt or lt gt gt push buttons the change of the position of the cursor on the display e lt SHIFT gt and lt lt gt push buttons the cursor is moved to the left corner of the display e lt SHIFT gt and lt gt gt push buttons the cursor is moved to the rig
16. r off the available modes of displaying the results of analysis The activation is made by placing and the deactivation by replacing the special character in the displayed inversely position of the DISPLAY MODES sub list by means of the lt lt gt lt gt gt push buttons In order to confirm the selection the user has to press the lt ENTER gt push button In order to change the presentation mode to be switched on or off the user has to press the lt A gt or lt v gt push buttons The following presentation modes are available one profile SPECTRUM 3 PROFILES STATISTICS LOGGER and FILE INFO The user can change the current presentation mode of the analysis results by means of the lt A gt and lt y gt push buttons a ao DISPLAY DISPLAY MODES DISPLAY MODES Te 4 4 W FILE INFO SAEI Main list DISPLAY list and DISPLAY MODES window with available modes of presentation A Notice The user can switch on vj or off the available presentation modes of the analysis results SPECTRUM 3PROFILES STATISTICS LOGGER FILE INFO in the DISPLAY MODES window path MENU DISPLAY DISPLAY MODES One profile mode cannot be switched off See Chapter dealing with DISPLAY list for the details 10 4 SVAN 953 USER MANUAL 10 3 1 One profile presentation mode in 1 1 OCTAVE analysis In one profile the results are presented in the same way as in the case of the SLM mode The active profile is changed aft
17. rk in the SLM mode In the SLM mode the continuous lines are used EA Profileti a oio adba 3 PROFILES presentation mode with the doted lines stating the instrument does not work in SLM mode a and the continuous lines in SLM mode b In 3 PROFILES mode on the right side of the display the information about the weighting filter A C Z and indicator of the detector time constant or indicator of linear RMS integration S Slow F Fast 10 5 SVAN 953 USER MANUAL I Impulse L Linear are displayed It is possible to change the view by pressing lt ALT gt and lt A gt or lt y gt push buttons After that change on the left side of the display the scale can be observed and the information about the weighting filter and detector time constant are displayed in the first line below the measurement results lt ALT gt lt A gt Displays with the different 3 PROFILE presentation mode 10 3 4 Statistical presentation mode in 1 1 OCTAVE analysis STATISTICS In the STATISTICS mode it is possible to select the LN value using the lt lt gt lt gt gt push buttons The active profile is presented on the right side of the display The indicator of the weighting filter is displayed in the fourth line The LN corresponding to the current position of the cursor and the value of the LN displayed down together with the units When the STATISTICS mode of result s presentation is entered the lt A gt lt v gt push buttons
18. s that the instrument is in the measurement process In order to change the range the measurement must be stopped 10 2 SVAN 953 USER MANUAL O 1 HEASUR RANGE RANGE HIGH RMS cA 29 306 136 306 PEAK 75 306 142 306 MEASUREMENT RANGE window not accessible during the measurement 10 2 2 Weighting filter selection in 1 1 OCTAVE analysis FILTER The SPECTRUM sub list oath MENU INPUT SPECTRUM is a context element which appears on the INPUT list in 1 1 OCTAVE mode Using the SPECTRUM sub list one can select in 1 1 OCTAVE analysis the weighting filter and enable saving 1 1 OCTAVE results in the logger s file of the instrument The following weighting filters are available in 1 1 OCTAVE analysis A type 1 according to the IEC 651 and IEC 61672 1 standards c type 1 according to the IEC 651 and IEC 61672 1 standards Z type 1 according to the IEC 61672 1 standard pm oa oa oa INPUT SPECTRUM SPECTRUM SPECTRUM MEASUREMENT SETUP MEASUREMENT RANGE PROFILE 1 PROFILE 2 PROFILE 3 SPECTRUM windows with selection of the weighting filter The characteristics of the filters are given in Appendix D The selection of the required filter is made with the lt lt gt lt gt gt push buttons After pressing the lt ENTER gt push button the user can confirm the selection and close the window The return to the INPUT list is made also after pressing the lt ESC gt push button but in this case the selectio
19. th different value of X ZOOM selected in DISPLAY SCALE A Notice The same result the horizontal extension or narrowing of the analysis results can be achieved by pressing the lt SHIFT gt and lt lt gt lt gt gt push buttons while 1 1 octave spectrum is presented on the display tr 51 9 Ble 31 5Hz Displays in 1 1 OCTAVE SPECTRUM with different X ZOOM parameter 10 9 SVAN 953 USER MANUAL 10 3 9 Switching on off the grid in the graphical presentation GRID The GRID path MENU DISPLAY DISPLAY SCALE X ZOOM enables the user to switch on V or off the grid in any graphical presentation placing or replacing the special character in the displayed inversely line with the GRID text by means of the lt lt gt lt gt gt push buttons In order to confirm the selection the user has to press the lt ENTER gt push button This confirmation closes also the DISPLAY SCALE window The window can be also closed after pressing the lt ESC gt push button but the settings made there are ignored Sede to dx Dea SPECTRUM UTEW gt DEBER VIEW 10 3 10 View selection in 1 1 OCTAVE analysis VIEW The user can select the actually active view mode in the VIEW position of the SPECTRUM VIEW sub list path MENU DISPLAY DISPLAY SETUP SPECTRUM VIEW VIEW by means of the lt lt gt lt gt gt push buttons In order to confirm the selection the user has to press the lt ENTER gt pus
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